11751749321697 has 48 divisors (see below), whose sum is σ = 21170469685248. Its totient is φ = 6102743430240.

The previous prime is 11751749321621. The next prime is 11751749321701. The reversal of 11751749321697 is 79612394715711.

11751749321697 is a `hidden beast` number, since 1 + 1 + 7 + 51 + 7 + 493 + 2 + 1 + 6 + 97 = 666.

It is not a de Polignac number, because 11751749321697 - 2¹⁴ = 11751749305313 is a prime.

It is a super-2 number, since 2×11751749321697² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (11751749321197) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 808233 + ... + 4914950.

It is an arithmetic number, because the mean of its divisors is an integer number (441051451776).

Almost surely, 2^{11751749321697} is an apocalyptic number.

It is an amenable number.

11751749321697 is a deficient number, since it is larger than the sum of its proper divisors (9418720363551).

11751749321697 is a wasteful number, since it uses less digits than its factorization.

11751749321697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5726170 (or 5726167 counting only the distinct ones).

The product of its digits is 20003760, while the sum is 63.

The spelling of 11751749321697 in words is "eleven trillion, seven hundred fifty-one billion, seven hundred forty-nine million, three hundred twenty-one thousand, six hundred ninety-seven".